MESON Chess Problem Database

Problem Display
PID: 237399 (2Q5/1NpP4/pRBRp3/p1B1p3/2k5/5P2/1P3K2/8 w - - 0 1)

Labai, Zoltan

Szachy, 1979

2Q5/1NpP4/pRBRp3/p1B1p3/2k5/5P2/1P3K2/8

#2

10 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...a4
      • 2.Rb4#
    • 1...e4
      • 2.Rd4#
  • Tries
    • 1.Ba3?
      • threat
        • 2.Sxa5#
      • 1...cxb6
        • 2.Ba4#
      • 1...a4
        • 2.Sa5#
        • 2.Rb4#
      • 1...cxd6!
    • 1.Be3?
      • threat
        • 2.Sxa5#
      • 1...cxd6
        • 2.Be4#
      • 1...a4
        • 2.Sa5#
      • 1...cxb6!
    • 1.Ba4?
      • threat
        • 2.Bb3#
      • 1...cxb6
        • 2.Ba3#
      • 1...cxd6!
    • 1.Be4?
      • threat
        • 2.Bd3#
      • 1...cxd6
        • 2.Sxa5#
        • 2.Sxd6#
        • 2.Be3#
      • 1...cxb6!
    • 1.Rd1?
      • 1...a4
        • 2.Rb4#
      • 1...e4
        • 2.Rd4#
      • 1...cxb6!
    • 1.Rd2?
      • 1...a4
        • 2.Rb4#
      • 1...e4
        • 2.Rd4#
      • 1...cxb6!
  • Keys
    • 1.Qxc7!
      • 1...a4
        • 2.Rb4#
      • 1...e4
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD::R1(E)
    • P(c);N_GUARD::R1(G)
  • Tries
    • Try
      • B(D);
      • Threat
        • S(H),XP(b)
      • Vars
        • P(f);OGATEB,XR(E)::QAR(J)+B(F)
      • Refutation
        • P(f);XR(G)
    • Try
      • B(D);
      • Threat
        • S(H),XP(b)
      • Vars
        • P(f);OGATEB,XR(G)::QAR(J)+B(F)
        • P(b);::S(H)
      • Refutation
        • P(f);XR(E)
    • Try
      • B(F);
      • Threat
        • B(F)
      • Vars
        • P(f);OGATEB,XR(E)::QAR(J)+B(D)
      • Refutation
        • P(f);XR(G)
    • Try
      • B(F);
      • Threat
        • B(F)
      • Refutation
        • P(f);XR(E)
    • Try
      • R(G);
      • Vars
        • P(b);N_GUARD::R1(E)
        • P(c);N_GUARD::R1(G)
      • Refutation
        • P(f);XR(E)
    • Try
      • R(G);
      • Vars
        • P(b);N_GUARD::R1(E)
        • P(c);N_GUARD::R1(G)
      • Refutation
        • P(f);XR(E)
  • Actual
    • Q(J);XP(f)
    • Vars
      • P(b);N_GUARD::R1(E)
      • P(c);N_GUARD::R1(G)
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